CaixaBank in August announced in August that it would buy Barclay's Spanish operations for 800 million euros.

The sale includes Barclay's retail banking, wealth and investment management and corporate banking businesses in Spain and it involved the transfer of the British bank's branches in the country to CaixaBank.

Last year CaixaBank, which bought several ailing savings banks bailed out by the government after the real estate slump, missed out on a chance to buy a local rival, state-owned Catalunya Banc, which was snapped up by BBVA in an auction.

CaixaBank, Spain's third-largest bank after Santander and BBVA, employs more than 31,200 people and has 13.4 million customers.